Attachment for telephones.



a. B. MRWN. S ATTACHMENT FOR TELEPHONES.

APPLICATION FILED JUNE 2|. I915.

Patentefl Nov. 6 1917.

1m mm INV TOR. WM W Y fi ATTORNEYS.

WITNESSES UNITED STATES PATENT OFFICE.

JAMES B vJ-ABM IN, 01 SPOKANE, WASHINGTON, ASSIGNOR 0F ONE-HALF TO JOHNS.

1mm, orroarnami, onneon.

" ATTACHMENT roa 'rn'rnrnonns.

Specification of Letters Patent.

Patented Nov. 6, 191 '7.

Application filed June 21, 1915. Serial No. 35,284.

To all whom it may concern:

Be it known that I, JAMES B. JARMIN, a

citizen of the United States, residing at.

Spokane, in the county of Spokane and State of Washington, have inventednew and useful Improvements in Attachments for Telephones, of which thefollowing is the specification.

This invention relates to time recorders, and more particularly timerecorders adaptwho be applied and used in connect-ion with telephones soas to record the time consumed in a telephone conversation and thusprovide a check upon the telephone operator for pay conversations suchas long distance calls in which the charge made to the customer isdependent upon the time consumed in actual conversation with the partycalled.

When it is..remembered that 1t is possible to speak by long distancetelep one now fromNew York to San Francisco,.but that the chargeper'minute for far calls often amounts to several dollars, it will beappreciated ,that it is important to have. a

simple and accurate means by which the customer himself can record thetime consumed in such conversations and check and .deduct forinaccuracies and overcharges on its attachment to. a support such as atale phone.

In the drawings:

Figure 1 isan elevation of a telephone with-the time recorder attached.

Fig. 2 is an elevation of a time recording device. 7

Fig. 3 is an elevation of the sand comprising a part thereof.

F1 4- 1s a rear elevation showing attac phone.

Fig.5 is a detail perspective view of certain parts of the deviceextended in their relative'positions. I

In the drawings: 1 represents a desk telephone of customary formprovided with a p'vot screw 2 for the mouthpiece, and a tliumb-screw 3that corres onds therewith, to hold the mouthpiece 4 1n adjustedposition. I rovide an an 1e bracket 5 having an angle end 6 provhid witha hole 7 for glass the 'with scale marks 19 and 19 'tion shown in Fig.1,

ent of the time recorder tothe tele-.

the reception of the screw 2, the bracket, therefore, being held inposition upon the telephone by the thumb-screw 3. At its opposite endthe bracket is provided with an angled portion 7 upon which is rigidlysecured by means such as the bolt 8 and nuts 9 a disk 10 having aplurality of apertures 11, the central aperture 12 for the reception ofthe bolt 8, struck up projections 13 which fit up either side of theportion 7 of the bracket 5 to prevent the disk from turning. The boltv 8passes through an aperture in the casing 14 of the sand glass, as shownin Fig. 5, and the casing 14 i provided with a knob or roundedprojection 15 which takes into one or more of the holes 11, abovedescribed, to retain the sand glass in adjusted position. The casing 14comprises a U-shaped slotted tube, as shown, provided with a metallicpush cap 16 and carries the sand glass 17. The sand glass 17 is ofsimple construction; is closed by means of the cork 18 and. is providedsides of its two parts.

In operation, with the time recorder in the position indicated in fulllines in Fig. 1 and all the sand in one half thereof the user as soon ashe starts a telephone conversation upon a long distance or other aidcall, turns the time recorder upside own bringing the scale marks 19 tothe front at the bottom, accurately recording the time "consumed in theconversation. As soon as the conversation is finished, he may note thelevel of the sand and read, from the scale marks 19' precisely the timeconsumed in the conversation, or, immediately when the conversationceases, the user may shift the time recorder to the dotted lineposireventing further flow of sand therein and afterward, at hisleisure, turn it back to vertical position and notice how much sand thelower half contains.

While I have indicated the device as a plied to a telephone, it may,-ofcourse, e used with equal success in the ofiice of a telephone companyfor the same urpose, and attached to the switchboard .or convenientoperation by the toll operator.

Having now described my lnvention, I claim:

A bracket for sand glasses adaptedto be attached to desk telephones,said bracket ppon opposite having a perforatedflange thereon adapted InWitness whereof, I hereunto subscribe to be frictionally engaged by thethumb nut my name to this specification in the presof a desk telephone,a laterally extending ence of two Witnesses.

arm on said bracket which is frictionally JAMES B. JARMIN. engaged bymeans of a resilient member Witnesses: and bolt to :1 clamp engaging thecasingof B. P. MOREHOUSE,

a sand glass. V. '1. TUSTIN.

